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Finding the Fourth Proportional to 249,888.97, 344,847 and 136,711.72

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Solution

The fourth proportional to 249,888.97, 344,847 and 136,711.72 is: 188,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,888.97 : 344,847 = 136,711.72 : x
  2. Step 2: Convert to fraction form
    249,888.97/344,847 = 136,711.72/x
  3. Step 3: Cross multiply
    249,888.97x = 344,847 × 136,711.72
  4. Step 4: Simplify right side
    249,888.97x = 47,144,626,506.84
  5. Step 5: Solve for x
    x = 47,144,626,506.84/249,888.97
  6. Step 6: Final answer
    x = 188,662.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.